// Copyright(C) 2023 InfiniFlow, Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

module;

#include <concepts>
#include <type_traits>

export module nullary_operation;

import stl;
import column_vector;
import internal_types;

namespace infinity {

export class NullaryOperator {

public:
    template <typename ResultType, typename Operator>
    static void inline Execute(SharedPtr<ColumnVector> &result, void *state_ptr) {
        result->Reset();
        result->Initialize(ColumnVectorType::kConstant);
        auto *result_ptr = (ResultType *)(result->data());
        Operator::template Execute<ResultType>(result_ptr[0], state_ptr);

        result->Finalize(1);
    }
};

} // namespace infinity